if it's a manual gearbox TD4 ..
egr deleted / bypassed ?
consider a synergy2a /ronbox with the pierburg maf .. and dashboard 3 way switch ..
http://www.tuning-diesels.co.uk
( with a pierburg maf .. and an egr delete / bypass unit
( you can then use all 10 settings .. and choose 1 to suit ..
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if you've an auto gearbox .. getting a remap done is said to be better ..
'eco' or 'power' remap ? .. i'd go for a power remap ..
and if you need to 'economise' simply keep your right foot out of it ..
( as well as various other things to keep fuel demand low ..
( driving style .. tyre pressures .. etc etc etc ..
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a TD4 manual gearbox .. and you prefer a remap ..
i'd still go for 'power' over 'economy' .. cause i'd still have control over economy
plus the power when i needed it .. ( i.e. right foot and gear / engine rpm choice )
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step 1 .. get rid of the egr valve and fit a bypass unit .. that will give an extra 3mpg probably
and go from there ..
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